This study reports on the development of teaching materials by using samples from mines and their neighboring rivers. The indirect analysis of manganese in sediment and surface water was studied, and the procedures were simplified for high school learners. Here, manganese was extracted from sediment, oxidized to the violet permanganate (MnO_4^-) complex and the concentration of the complex determined by color comparison with standard solutions. The concentration of the permanganate complex was used as the relative measure of the amount of manganese in the sediment. The lesson activities developed and were tried to forty (40) grade 11 learners at Naruto high school, Japan.
内容記述
国立情報学研究所『研究紀要公開支援事業』により電子化。
雑誌名
鳴門教育大学学校教育研究紀要
巻
20
ページ
91 - 94
発行年
2006-02-26
出版者
鳴門教育大学地域連携センター
出版者(別表記)
Center for Collaboration in Community, Naruto University of Education
DEVELOPMENT OF TEACHING MATERIALS FROM ENVIRONMENTAL SAMPLE OF MINES AND RIVERS
KJ00004462952.pdf
(323.19KB)
